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Assertion (A): The equation has solution . Reason (R): A variable can take the value 0. Which is correct?

Class 6AlgebraAlgebra
  • ABoth A and R are true and R explains A
  • BBoth A and R are true but R does not explain A
  • CA is true but R is false
  • DA is false but R is true

Step-by-Step Solution

gives since 0 + 5 = 5 (A true). This is possible because a variable can be 0 (R true and explains A).
Answer: A) Both A and R are true and R explains A

Key idea: From expressions to equations

Add an equals sign and you have an **equation** — a question. 'For what value of does equal 13?' is written . The **solution** is the value that makes the two sides equal. Here, works, because . For Class 6, the simplest method is **trial-and-improvement** — try whole numbers until you find one that works. Faster algebraic methods come in Class 7.

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